Fastening device

Abstract

The invention provides a fastening device. The fastening device comprises a shell, a wire coil, a braking unit and a knob, the shell comprises an upper shell body and a base. The upper shell comprises at least one protruding wing protruding upwards. The base is detachably coupled to the upper shell. The wire coil is contained in the shell and provided with an axis. The detent unit is located above the wire coil along the axis. And the knob cover is arranged on the upper shell. And at least one part of the at least one convex wing is higher than a bottom edge of the knob. Therefore, the use safety can be improved.

Description

Technical Field

[0001] The present invention relates to a fastening device, and more particularly to a fastening device which is used for being installed on an object and can be used for tying a tie line. Background Art

[0002] A conventional fastening device may include a knob and a wire reel, the wire reel being coupled to a tie wire, the tie wire being able to pass through the object being bound, and the tie wire being able to be quickly retracted and released by operating the knob to facilitate tightening the object being bound. Such conventional fastening devices generally release the tie wire by pulling up or reversing the knob, and the wire reel may be fixed when the knob is not pulled up or reversed. Therefore, if the fastening device is used in an environment that is easily impacted, the knob may be impacted and displaced, causing the tie wire to loosen, which may cause danger.

[0003] In view of this, how to improve the structure of the fastening device to enhance its safety has become a goal of relevant industry players. Summary of the invention

[0004] Accordingly, the present invention provides a fastening device, which can improve the safety of the fastening device through structural configuration.

[0005] According to one embodiment of the present invention, a fastening device is provided, comprising a housing, a wire drum, a detent unit and a knob. The housing comprises an upper shell and a base. The upper shell comprises at least one convex wing protruding upward. The base is detachably coupled to the upper shell. The wire drum is accommodated in the housing and has an axis. The detent unit is located above the wire drum along the axis. The knob cover is disposed on the upper shell. At least a portion of the at least one convex wing is higher than a bottom edge of the knob.

[0006] Thus, by making at least a portion of the convex wing higher than the bottom edge of the knob, it is possible to effectively prevent the tie line from being loosened due to an external force directly hitting the knob, thereby improving safety.

[0007] According to the fastening device of the aforementioned embodiment, the upper shell may further include an inner ring component and an outer ring component. The outer ring component surrounds the inner ring component. The at least one convex wing is connected to one side of the outer ring component.

[0008] According to the fastening device of the aforementioned embodiment, the outer ring component may include at least one mounting flange, the at least one mounting flange is used to be assembled on the base, and the at least one convex wing protrudes upward from the at least one mounting flange.

[0009] According to the fastening device of the aforementioned embodiment, the inner ring component may include at least one engaging protrusion, and the at least one engaging protrusion is engaged with the outer ring component.

[0010] According to the fastening device of the aforementioned embodiment, the outer ring assembly may include two assembly parts detachably connected to each other, the number of the at least one convex wing is two, and each convex wing is connected to each assembly part.

[0011] According to the fastening device of the aforementioned embodiment, the outer ring component may include at least one protrusion, the at least one protrusion protrudes inward from the lower edge of at least one of the two combination parts, and the at least one protrusion is used to couple to the inner ring component or the base.

[0012] According to the fastening device of the aforementioned embodiment, the upper shell may include an inner ring component, the inner ring component includes an annular body and a convex ring, the convex ring is connected to the annular body and is used to connect the at least one convex wing, and the convex ring is supported by an annular wall of the base.

[0013] According to the fastening device of the aforementioned embodiment, the upper shell may include an upper opening, and the at least one convex wing is higher than the upper opening.

[0014] According to the fastening device of the aforementioned embodiment, the aforementioned at least one convex wing may include an upper part and a lower part, the outer side of the upper part of the aforementioned at least one convex wing includes an upper radial outermost edge, the outer side of the lower part of the aforementioned at least one convex wing includes a lower radial outermost edge, and a distance between the upper radial outermost edge of the aforementioned at least one convex wing and the axis is equal to or less than a distance between the lower radial outermost edge and the axis.

[0015] According to another embodiment of the present invention, a fastening device is provided, comprising a housing, a wire drum, a detent unit and a knob. The housing comprises an upper shell and a base. The upper shell comprises at least one convex wing protruding upward. The base is detachably coupled to the upper shell. The wire drum is accommodated in the housing. The detent unit is operably coupled to the wire drum. The knob cover is disposed on the upper shell. At least a portion of the at least one convex wing is higher than a bottom edge of the knob, and the knob is operated to tighten or release a tie line.

[0016] According to the fastening device of the aforementioned embodiment, the upper shell may include an inner ring component and an outer ring component. The outer ring component surrounds the inner ring component. The at least one convex wing is connected to one side of the outer ring component.

[0017] According to the fastening device of the aforementioned embodiment, the outer ring component may include at least one mounting flange, the at least one mounting flange is used to be assembled on the base, and the at least one convex wing protrudes upward from the at least one mounting flange.

[0018] According to the fastening device of the aforementioned embodiment, the outer ring assembly may include two assembly parts detachably connected to each other, the number of the at least one convex wing is two, and each convex wing is connected to each assembly part.

[0019] According to the fastening device of the aforementioned embodiment, the upper shell may include an inner ring component, the inner ring component includes an annular body and a convex ring, the convex ring is connected to the annular body and is used to connect the at least one convex wing, and the convex ring is supported by an annular wall of the base.

[0020] According to the fastening device of the aforementioned embodiment, the upper housing may further include a partition portion, and the wire reel is located below the partition portion.

[0021] The fastening device according to the aforementioned embodiment may further include a connecting unit, which is passed through the wire reel and connected to the knob, and the connecting unit does not directly contact the base.

[0022] According to the fastening device of the aforementioned embodiment, wherein the aforementioned at least one convex wing may include an upper part and a lower part, the outer side of the upper part of the aforementioned at least one convex wing includes an upper radial outermost edge, the outer side of the lower part of the aforementioned at least one convex wing includes a lower radial outermost edge, and a distance between the upper radial outermost edge of the aforementioned at least one convex wing and an axis is equal to or less than a distance between the lower radial outermost edge and an axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional schematic diagram of a fastening device according to a first embodiment of the present invention is shown;

[0024] Figure 2 Draw Figure 1 An exploded schematic diagram of the fastening device of the first embodiment;

[0025] Figure 3 Draw Figure 1 Another exploded schematic diagram of the fastening device of the first embodiment;

[0026] Figure 4 Draw Figure 1 A schematic cross-sectional view of a fastening device according to a first embodiment;

[0027] Figure 5 Draw Figure 1 Another schematic cross-sectional view of the fastening device of the first embodiment;

[0028] Figure 6 A three-dimensional schematic diagram showing an outer ring assembly and two protruding wings of a fastening device according to a second embodiment of the present invention;

[0029] Figure 7 Draw Figure 6 Another perspective schematic diagram of the outer ring assembly and two protruding wings of the fastening device of the second embodiment;

[0030] Figure 8 A three-dimensional schematic diagram of a fastening device according to a third embodiment of the present invention is shown;

[0031] Fig. 9 Draw Figure 8 An exploded schematic diagram of the fastening device of the third embodiment;

[0032] Fig.10 Draw Figure 8 Another exploded schematic diagram of the fastening device of the third embodiment;

[0033] Fig.11 Draw Figure 8 A schematic cross-sectional view of a fastening device according to a third embodiment; and

[0034] Fig.12 Draw Figure 8 Another schematic cross-sectional view of the fastening device according to the third embodiment.

[0035]

Explanation of symbols

[0036] 1000,3000: Fastening device

[0037] 1100: Shell

[0038] 1110,3110: Base

[0039] 1111: Ring wall

[0040] 1112: Base flange

[0041] 1113: coupling hole

[0042] 1114: Installation area

[0043] 1120,3120: Upper shell

[0044] 1121,2121,3121: convex wing

[0045] 1121a: Upper

[0046] 1121b: Lower part

[0047] 1122,3122: Inner ring assembly

[0048] 1122a: Engagement convex part

[0049] 1123,2123: Outer ring assembly

[0050] 1123a: Ring part

[0051] 1123b: Mounting flange

[0052] 1124: Occlusal teeth

[0053] 1125: Spacer

[0054] 1126: Positioning feet

[0055] 1127: Internal teeth

[0056] 1200,3200: Cable reel

[0057] 1210: Upper Ring

[0058] 1220: Lower ring

[0059] 1300,3300: brake unit

[0060] 1310,3310: Ratchet Arm

[0061] 1320: Elastic arm

[0062] 1330: Guidance Department

[0063] 1400,3400: Knob

[0064] 1410: Cover

[0065] 1420: Cover part

[0066] 1430:Guide Track

[0067] 1440: Pushing part

[0068] 1500: Transmission Group

[0069] 1510:Sun gear

[0070] 1520:Planetary gear

[0071] 1530: Transmission gear

[0072] 1600,3600:Connection unit

[0073] 1610,3620: screw parts

[0074] 1620:Central axis

[0075] 2123c: Combination Department

[0076] 2123d: Assembly Department

[0077] 2129: Bump

[0078] 3122a: convex ring

[0079] 3128:Limiting arm

[0080] 3230:Drive hole

[0081] 3240: Flexible card part

[0082] 3340: Driving gear

[0083] 3410: Inner cover

[0084] 3420: Outer cover

[0085] 3450: Knob tooth

[0086] 3460: Boss

[0087] 3610: Positioning shaft

[0088] 3611: Positioning convex

[0089] 3630: Nut

[0090] A1: tightening direction

[0091] A2: Release direction

[0092] D1,D2: distance

[0093] X1: Axis DETAILED DESCRIPTION

[0094] Embodiments of the present invention will be described below with reference to the accompanying drawings. For the sake of clarity, many practical details will be described together in the following description. However, the reader should understand that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and elements will be depicted in a simple schematic manner in the drawings; and repeated elements may be represented by the same number or similar number.

[0095] In addition, the terms "first", "second", "third" and the like in this document are only used to describe different elements or components, and do not limit the elements / components themselves. Therefore, the first element / component may also be renamed as the second element / component. Moreover, the combination of elements / components / mechanisms / modules in this document is not a generally known, conventional or conventional combination in this field. Whether the elements / components / mechanisms / modules themselves are conventional cannot be used to determine whether their combination relationship is easy to be easily completed by a person of ordinary skill in the technical field.

[0096] See also Figure 1 , Figure 2 and Figure 3 ,in Figure 1 FIG. 1 is a three-dimensional schematic diagram of a fastening device 1000 according to a first embodiment of the present invention. Figure 2 Draw Figure 1 An exploded schematic diagram of the fastening device 1000 of the first embodiment, Figure 3 Draw Figure 1 Another exploded schematic diagram of the fastening device 1000 of the first embodiment. The fastening device 1000 comprises a housing 1100, a wire drum 1200, a detent unit 1300 and a knob 1400.

[0097] The housing 1100 includes an upper housing 1120 and a base 1110. The upper housing 1120 includes at least one wing 1121 protruding upward, and the base 1110 is detachably coupled to the upper housing 1120. The cable drum 1200 is accommodated in the housing 1100 and has an axis X1 (shown in FIG. Figure 4 The detent unit 1300 is located above the wire drum 1200 along the axis X1. The knob 1400 is covered on the upper housing 1120. At least a portion of the at least one convex wing 1121 is higher than a bottom edge of the knob 1400.

[0098] Thus, by making at least a portion of the protruding wing 1121 higher than the bottom edge of the knob 1400, it is possible to effectively prevent the external force from directly hitting the knob 1400 and causing the tie line to loosen, thereby improving safety.

[0099] like Figure 2 and Figure 3 As shown, the base 1110 is an integrated component and may include an annular wall 1111, a base flange 1112, four coupling holes 1113 and two mounting areas 1114. The annular wall 1111 is disposed in the middle of the base flange 1112 and is connected to the upper shell 1120 to form a cable drum space that can accommodate the cable drum 1200. The base flange 1112 is generally elliptical, and the two mounting areas 1114 are respectively located at the two ends of the long axis of the base flange 1112, and each mounting area 1114 may include a radial coupling groove. The four coupling holes 1113 may be spaced apart on the annular wall 1111 and used to couple to the upper shell 1120.

[0100] The upper housing 1120 may include an inner ring component 1122 and an outer ring component 1123. The outer ring component 1123 surrounds the inner ring component 1122. In this embodiment, the number of the at least one convex wing 1121 may be two, and the two convex wings 1121 are respectively connected to two sides of the outer ring component 1123. In addition, the upper housing 1120 may further include an upper opening, and each convex wing 1121 may be higher than the upper opening.

[0101] Specifically, the inner ring component 1122 may be generally annular, and the upper opening is located at an upper end of the inner ring component 1122. The upper shell 1120 may further include a plurality of engaging teeth 1124, a spacer 1125, four positioning feet 1126, and a plurality of inner teeth 1127. The spacer 1125 protrudes radially inward from the inner wall of the inner ring component 1122 to define an upper chamber, and the spacer 1125 may include a central through hole. The engaging teeth 1124 are located at the upper end of the inner ring component 1122 and face the upper chamber. The four positioning feet 1126 are located at the lower end of the inner ring component 1122 and protrude downward, and the four positioning feet 1126 are respectively used to insert into the four coupling holes 1113, so that the inner ring component 1122 can be combined with the base 1110. The inner teeth 1127 are located on the inner wall of the inner ring component 1122 and below the spacer 1125, and can correspond to the wire drum space. The inner ring component 1122 may further include two engaging protrusions 1122a, which protrude radially outward and are used to engage the outer ring component 1123. In other embodiments, the number of the engaging protrusions may be at least one, not limited to the above disclosure.

[0102] The outer ring assembly 1123 may include two mounting flanges 1123b, the two mounting flanges 1123b are used to be assembled on the base 1110, and each convex wing 1121 protrudes upward from each mounting flange 1123b. Specifically, the outer ring assembly 1123 may include an annular portion 1123a, the annular portion 1123a may surround the inner ring assembly 1122, and the two convex wings 1121 may extend upward and downward from two sides of the annular portion 1123a, respectively, to form a shield-like structure. The mounting flange 1123b connects the bottom end of the convex wing 1121 and the annular portion 1123a, so each convex wing 1121 can also be regarded as extending upward from each mounting flange 1123b. The mounting flange 1123b can be used to correspond to the two mounting areas 1114. The outer ring assembly 1123 may further include two hooks, which may protrude downward from a portion of the two convex wings 1121, or from the two mounting flanges 1123b, and each hook may be engaged with a coupling groove of each mounting area 1114, so that the outer ring assembly 1123 is assembled to the base 1110. In this way, the base 1110 can provide support for the convex wings 1121, which can help the convex wings 1121 to withstand radial external forces.

[0103] Furthermore, each wing 1121 includes an upper portion 1121a (indicated at Figure 4 ) and a lower portion 1121b (marked at Figure 4 ), the outer side of each upper portion 1121a includes an upper radial outermost edge (not marked), the outer side of each lower portion 1121b includes a lower radial outermost edge (not marked), and a distance D1 (shown in FIG. 1 ) between each upper radial outermost edge and the axis X1 Figure 4 ) is equal to or less than a distance D2 (shown in FIG. Figure 4). By making the lower portion 1121b of the convex wing 1121 wider than the upper portion 1121a or equal to the upper portion 1121a, it is helpful to strengthen the structure and increase the stability of the protection. It should be particularly noted that although the first embodiment shows two convex wings 1121, in other embodiments, there can be only one convex wing, and the present invention is not limited thereto.

[0104] The wire drum 1200 is accommodated in the wire drum space formed by the inner ring assembly 1122 and the base 1110 and includes an upper ring portion 1210, a lower ring portion 1220 and four pivots (not shown). A winding track is formed between the upper ring portion 1210 and the lower ring portion 1220, whereby the tie wire can be wound around the winding track. The pivots can be arranged on the upper surface of the upper ring portion 1210.

[0105] The fastening device 1000 may further include a transmission set 1500, which includes a sun gear 1510, four planetary gears 1520 and a transmission gear 1530. The transmission set 1500 is also located in the wire drum space, the four planetary gears 1520 may be respectively pivoted on four pivots and correspondingly meshed with the internal teeth 1127, and the sun gear 1510 is located between the four planetary gears 1520 and meshed with the planetary gears 1520. One end of the transmission gear 1530 may mesh with the sun gear 1510, and the other end may mesh with the brake unit 1300.

[0106] The detent unit 1300 may include a detent ring (not shown), three ratchet arms 1310, three elastic arms 1320, and three guide portions 1330. The detent ring includes a toothed portion meshed with the transmission gear 1530, each ratchet arm 1310 is disposed on the detent ring and extends along a circumference of the detent ring, each guide portion 1330 protrudes radially outward from the detent ring, and each guide portion 1330 is located at a proximal end of each ratchet arm 1310. Each elastic arm 1320 extends circumferentially from one side of each guide portion 1330, each elastic arm 1320 protrudes radially outward more than each ratchet arm 1310, and the length of each elastic arm 1320 in the circumferential direction is shorter than the length of each ratchet arm 1310 in the circumferential direction. Each ratchet arm 1310 may correspond to the engaging tooth 1124 , and be separated from the engaging tooth 1124 in a tightening direction A1 , and be engaged with the engaging tooth 1124 in a releasing direction A2 .

[0107] The knob 1400 may include a cover body 1410, a cover portion 1420, three guide rails 1430 and three push portions 1440. The cover body 1410 is used to cover the inner ring assembly 1122 and includes an inner side surface, the three guide rails 1430 are arranged at intervals on the inner side surface, and the three push portions 1440 are also arranged at intervals on the inner side surface, and each push portion 1440 is adjacent to an upper vertex of each guide rail 1430. Each guide portion 1330 may protrude into each guide rail 1430 and be guided by each guide rail 1430. Each push portion 1440 may protrude into the gap between each guide portion 1330 and each elastic arm 1320, and include a convex tooth corresponding to the convex tooth on the elastic arm 1320. The cover portion 1420 may cover the cover body 1410.

[0108] See also Figure 4 and Figure 5 ,in Figure 4 Draw Figure 1 A schematic cross-sectional view of the fastening device 1000 of the first embodiment, Figure 5 Draw Figure 1 Another cross-sectional view of the fastening device 1000 of the first embodiment. The fastening device 1000 may further include a connecting unit 1600, which is inserted into the wire drum 1200 and connected to the knob 1400, and the connecting unit 1600 does not directly contact the base 1110. Specifically, the connecting unit 1600 may include a central shaft 1620 and a screw 1610, the central shaft 1620 may be inserted upward into the wire drum 1200, and the screw 1610 may be inserted downward into the knob 1400 and locked into the central shaft 1620, so as to connect the knob 1400 and the wire drum 1200. More specifically, before the upper housing 1120 is combined with the base 1110, the transmission group 1500 and the wire drum 1200 can be placed in the upper housing 1120, and the central shaft 1620 can be inserted into the wire drum 1200 and the transmission group 1500 and then passed through the central through hole of the spacer 1125, and the central shaft 1620 can include a limit section to prevent the wire drum 1200 from falling. The detent unit 1300 can be placed in the upper chamber, and then the cover 1410 is covered, and the screw 1610 is locked into the central shaft 1620, so that the components other than the base 1110 can be assembled first, and then the base 1110 can be installed later.

[0109] The user can tighten the tie line by rotating the knob 1400 in the tightening direction A1. Figure 4As shown, the detent unit 1300 is at the first position at this time, and the user can rotate the knob 1400 in the tightening direction A1, and the push portion 1440 pushes one side of the guide portion 1330. Since the ratchet arm 1310 can be separated from the engaging tooth 1124 in the tightening direction A1, the knob 1400 can drive the detent unit 1300 to rotate the transmission group 1500 and the cable drum 1200 to tighten the tie line. When the user stops rotating the knob 1400, the ratchet arm 1310 engages with the engaging tooth 1124, preventing the cable drum 1200 from rotating in the release direction A2, thereby tightening the tie line and preventing the tie line from being released.

[0110] On the contrary, if Figure 5 As shown, the user rotates the knob 1400 in the release direction A2, and the push portion 1440 pushes against the elastic arm 1320. When the force exceeds the threshold of the elastic arm 1320, the elastic arm 1320 can be deflected, so that the knob 1400 is allowed to rotate relative to the detent unit 1300, and the guide portion 1330 is guided by the guide track 1430, so that the detent unit 1300 rises to a second position. At this time, the transmission gear 1530 is separated from the sun gear 1510, and the cable drum 1200 is not affected by the detent unit 1300, and the cable can be released.

[0111] See also Figure 6 and Figure 7 ,in Figure 6 A three-dimensional schematic diagram of an outer ring component 2123 and two protruding wings 2121 of a fastening device according to a second embodiment of the present invention is shown. Figure 7 Draw Figure 6 Another perspective view of the outer ring assembly 2123 and two convex wings 2121 of the fastening device of the second embodiment. The fastening device of the second embodiment may be similar to the fastening device 1000 of the first embodiment, but the structure of the outer ring assembly 2123 is slightly different, so the figure only shows the outer ring assembly 2123 and the convex wings 2121 connected to the outer ring assembly 2123.

[0112] Specifically, the outer ring assembly 2123 may include two assembly parts 2123c that are detachably connected to each other, and each convex wing 2121 is connected to each assembly part 2123c. The outer ring assembly 2123 may further include at least one protrusion 2129, which protrudes inward from the lower edge of at least one of the two assembly parts 2123c, and the at least one protrusion 2129 is used to couple to the inner ring assembly (not shown in the second embodiment) or the base (not shown in the second embodiment).

[0113] Each combination part 2123c may be roughly semicircular, and the outer ring component 2123 may further include two assembly parts 2123d, each assembly part 2123d is connected to one end of each combination part 2123c, and each convex wing 2121 is connected to the other end of each combination part 2123c and includes a groove. The number of protrusions 2129 may be two, and each protrusion 2129 is located in the middle section of each combination part 2123c. During assembly, the two combination parts 2123c can be surrounded by the inner ring component, and the two protrusions 2129 are engaged with the inner ring component, and each assembly part 2123d is protruded into each groove, so that the two combination parts 2123c can be assembled using screws and nuts.

[0114] See also Figure 8 , Fig. 9 and Fig.10 ,in Figure 8 FIG. 1 is a three-dimensional schematic diagram of a fastening device 3000 according to a third embodiment of the present invention. Fig. 9 Draw Figure 8 An exploded schematic diagram of the fastening device 3000 of the third embodiment, Fig.10 Draw Figure 8 Another exploded schematic diagram of the fastening device 3000 of the third embodiment. The fastening device 3000 includes a housing (not shown in the third embodiment), a wire reel 3200, a detent unit 3300, a knob 3400, and a connecting unit 3600 (shown in FIG. Fig.11 ).

[0115] The housing includes a base 3110 and an upper shell 3120. The upper shell 3120 includes two convex wings 3121 and an inner ring assembly 3122. The inner ring assembly 3122 includes an annular body and a convex ring 3122a. The convex ring 3122a is connected to the annular body and is used to connect the convex wings 3121. The convex ring 3122a can be supported on the annular wall of the base 3110. Furthermore, a gap can be formed between the inner surface of the convex ring 3122a and the outer surface of the annular body. When the knob 3400 is covered on the inner ring assembly 3122, it can be partially inserted into the gap. In addition, in the third embodiment, the distance D1 (shown in FIG. 1 ) between the radially outermost edge of each upper portion and the axis X1 is Fig.11 ) is equal to the distance D2 between the radially outermost edge of each lower portion and the axis X1 (shown in Fig.11 ).

[0116] The inner ring assembly 3122 may further include four limiting arms 3128, which are located on the partition wall (not shown in the third embodiment) and are arranged at intervals around the central through hole. When the detent unit 3300 is placed in the upper chamber, it can be limited by the limiting arms 3128.

[0117] The detent unit 3300 may include a detent ring, three ratchet arms 3310 and a plurality of driving teeth 3340, and the driving teeth 3340 are located at the upper end of the detent ring. The knob 3400 may include an inner cover 3410, an outer cover 3420, a plurality of knob teeth 3450 and a convex column 3460. The inner cover 3410 covers the inner ring assembly 3122 and is partially inserted into the gap between the convex ring 3122a and the annular body, and the outer cover 3420 covers the outer side of the inner cover 3410. The knob teeth 3450 are located on the inner top surface of the inner cover 3410, and the convex column 3460 protrudes downward from the inner top surface to couple with the driving hole 3230 of the cable drum 3200, so that the detent unit 3300 and the cable drum 3200 can be linked by rotating the knob 3400 in the tightening direction A1.

[0118] The connecting unit 3600 may include a positioning shaft 3610, a screw 3620 and a nut 3630. The positioning shaft 3610 penetrates the wire drum 3200 from bottom to top and is coupled to the flexible clamping portion 3240 (indicated at Fig.11 ), the nut 3630 is located in the boss 3460 of the knob 3400, and the screw 3620 can pass through the positioning shaft 3610 from bottom to top and be limited to the positioning shaft 3610 and then locked into the nut 3630 to connect the knob 3400 and the wire drum 3200.

[0119] See also Fig.11 and Fig.12 , and see also Fig. 9 and Fig.10 ,in Fig.11 Draw Figure 8 A cross-sectional view of a fastening device 3000 according to the third embodiment, Fig.12 Draw Figure 8 Another cross-sectional view of the fastening device 3000 of the third embodiment. Fig.11 As shown, at this time, the knob 3400 is located at a lower position, and the user can rotate the knob 3400 in the tightening direction A1 to separate the ratchet arm 3310 from the bite teeth (not shown in the third embodiment), and make the boss 3460 of the knob 3400 drive the drive hole 3230 of the wire drum 3200, thereby allowing the wire drum 3200 to tighten the tie line. When the user stops rotating the knob 3400, the ratchet arm 3310 engages with the bite teeth to tighten the tie line.

[0120] On the contrary, if Fig.12 As shown, when the user pulls up the knob 3400, the positioning protrusion 3611 of the positioning shaft 3610 will move from one side of the flexible clamping portion 3240 to the other side, and the knob teeth 3450 of the knob 3400 will be separated from the driving teeth 3340 of the detent unit 3300, and the engaging teeth will not affect the wire reel 3200, but can release the tie line.

[0121] Although the present invention has been disclosed as above by way of embodiments, it is not intended to limit the present invention. Anyone familiar with the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the attached claims.

Claims

1. A fastening device, characterized in that: Include: A housing, comprising: An upper shell including at least one convex wing protruding upward; and a base, detachably coupled to the upper housing; A wire disc, accommodated in the housing and having an axis; a detent unit located above the wire drum along the axis; as well as A knob, covered on the upper housing; Wherein, at least a portion of the at least one convex wing is higher than a bottom edge of the knob.

2. The fastening device according to claim 1, characterized in that The upper housing also includes: an inner ring assembly; and an outer ring assembly surrounding the inner ring assembly; Wherein, the at least one convex wing is connected to one side of the outer ring component.

3. The fastening device according to claim 2, characterized in that: The outer ring component comprises at least one mounting flange, the at least one mounting flange is used for being assembled on the base, and the at least one convex wing protrudes upward from the at least one mounting flange.

4. The fastening device according to claim 2, characterized in that: The inner ring component includes at least one engaging protrusion, and the at least one engaging protrusion is engaged with the outer ring component.

5. The fastening device according to claim 2, characterized in that: The outer ring component comprises two combined parts which are detachably connected to each other. The number of the at least one convex wing is two, and each convex wing is connected to each of the combined parts.

6. The fastening device according to claim 5, characterized in that The outer ring component comprises at least one protrusion, which protrudes inward from the lower edge of at least one of the two combination parts and is used for coupling with the inner ring component or the base.

7. The fastening device according to claim 1, characterized in that: The upper shell comprises an inner ring component, which comprises an annular body and a convex ring. The convex ring is connected to the annular body and used for connecting the at least one convex wing, and the convex ring is supported by an annular wall of the base.

8. The fastening device according to claim 1, characterized in that: The upper shell includes an upper opening, and the at least one protruding wing is higher than the upper opening.

9. The fastening device according to claim 1, characterized in that: The at least one convex wing includes an upper part and a lower part, the outer side of the upper part of the at least one convex wing includes an upper radial outermost edge, the outer side of the lower part of the at least one convex wing includes a lower radial outermost edge, and a distance between the upper radial outermost edge of the at least one convex wing and the axis is equal to or less than a distance between the lower radial outermost edge and the axis.

10. A fastening device, characterized in that: Include: A housing, comprising: An upper shell including at least one convex wing protruding upward; and a base, detachably coupled to the upper housing; A wire tray accommodated in the housing; a detent unit operably coupled to the cable drum; as well as A knob, covered on the upper housing; At least a portion of the at least one convex wing is higher than a bottom edge of the knob, and the knob is operated to tighten or release a tie line.

11. The fastening device according to claim 10, characterized in that The upper housing comprises: an inner ring assembly; and an outer ring assembly surrounding the inner ring assembly; Wherein, the at least one convex wing is connected to one side of the outer ring component.

12. The fastening device according to claim 11, characterized in that The outer ring component comprises at least one mounting flange, the at least one mounting flange is used for being assembled on the base, and the at least one convex wing protrudes upward from the at least one mounting flange.

13. The fastening device according to claim 11, characterized in that The outer ring component comprises two combined parts which are detachably connected to each other. The number of the at least one convex wing is two, and each convex wing is connected to each of the combined parts.

14. The fastening device according to claim 10, characterized in that The upper shell comprises an inner ring component, which comprises an annular body and a convex ring. The convex ring is connected to the annular body and used for connecting the at least one convex wing, and the convex ring is supported by an annular wall of the base.

15. The fastening device according to claim 10, characterized in that The upper shell further comprises a partition portion, and the wire reel is located below the partition portion.

16. The fastening device according to claim 10, characterized in that The utility model also comprises a connection unit which is passed through the wire drum and connected to the knob, and the connection unit does not directly contact the base.

17. The fastening device according to claim 10, characterized in that The at least one convex wing includes an upper part and a lower part, the outer side of the upper part of the at least one convex wing includes an upper radial outermost edge, the outer side of the lower part of the at least one convex wing includes a lower radial outermost edge, and a distance between the upper radial outermost edge of the at least one convex wing and an axis is equal to or less than a distance between the lower radial outermost edge and an axis.

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